“Changes in Special Physical Preparedness of Taekwondo ITF Athletes Aged 12-13 Resulting from the Differentiation Program of Physical Training”. Physical Culture and Sport: Scientific Perspective, no. 3 (September 26, 2024): 114–122. Accessed January 27, 2026. https://pcs.khmnu.edu.ua/index.php/pcs/article/view/243.